A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5895-01-205-2047
NSN 6220-01-580-4702
NSN 6620-01-098-9866
NSN 6105-01-437-0493
NSN 6320-00-116-3658
NSN 6620-00-935-1321
NSN 2925-01-049-8906
NSN 6645-01-324-1956
NSN 5999-00-470-3600
NSN 6145-00-923-2141
NSN 5905-00-203-5400
NSN 2925-01-303-5266